KINETICS OF OXIDATION OF GLUCOSE BY PERSULFATE IONS IN THE PRESENCE OF MN(II) IONS

The study of the kinetics of Mn(II)-catalyzed oxidation of glucose by persulfate ions showed that the process occurs via a chain radical mec hanism. It is established that the reaction orders with respect to glu cose and persulfate and manganese ions are close to unity. The effecti ve activation energy is equal to 98 kJ/mol. A general kinetic scheme o f the oxidation process is suggested. Analysis of the scheme with comp arison of the contributions of competing reactions made it possible to establish the regime of the process under experimental conditions, to distinguish the key reactions, to develop a mathematical model of the process, and to calculate the ratio of rate constants of some element ary reactions.